How to Make Slime With Contact Solution

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The slime craze continues and so many people are having fun making slime! Not only is slime fun to make – but kids will love stretching and squishing it. You’ve probably heard of all the slime fails. Well you’ve come to the right place for an easy slime recipe. Our favorite slime recipe is made with contact lens solution. It’s the easiest we’ve tried and without borax. So you won’t have to worry about slime fails with this one! Be sure to read the full post and tips below on how to make slime with contact solution!

How to Make Slime With Contact Solution

There are a number of different slime activators you can use to “transform” your glue mixture into slime. Contact lens solution is our favorite activator. You can also replace this for saline solution, but just make sure that that they contain boric acid and sodium borate.

Why is boric acid important for slime?

Boric acid is made from borax and similarly liquid starch contains sodium tetraborate which is also made from borax. Typically all activators have some derivative of borax. However, we prefer using the contact lens solution as it’s easier to use and more widely available (liquid starch is not available in Canada and Borax is not available in the UK).

We recommend Elmers as it has been tested and is quality glue. Do not substitute any ingredients as your slime may not work.

2. Baking Soda (1/2 teaspoon)

3. 1½ TBSP of Contact Lens Solution – Renu Fresh or Equate are both good brands which contain Boric Acid and Sodium Borate. Do not substitute for other brands.

4. (Optional) – Add 2 TBSP of water (up to 1/4 cup) if you’d like a stretchier slime.

5. (Optional) – extra glitter

Safety Tips: Adults only should make the slime and handle all chemicals. Do not substitute any ingredients in our slime recipes. If you have sensitive skin, wear gloves while playing with the slime. Always wash hands before and after use. If you notice any skin irritation discontinue use immediately. See the bottom of the post for more safety precautions.

Steps for How to Make Slime With Contact Solution

1. Get a bowl to mix your slime ingredients in.

2. Pour your entire 6 oz Elmer’s Glitter glue into the bowl.

3. Add your 1/2 teaspoon of baking soda and mix in thoroughly. Also add 2 TBSP or more of water here (up to 1/4 cup) if you want a stretchier slime.

5. Slowly add in your contact lens solution (reminder: your contact lens solution should contain boric acid or your slime will not form). Add it in slowly and mix if possible so that you can adjust and ensure you do not add too much. We like to add a few teaspoons at a time and then mix. Knead and mix thoroughly before adding more as you do not want to add too much or your slime will get too hard. You may not need the full amount so take this step slowly.

6. Now mix until your slime forms and begins to harden. Take it out and knead, knead, knead. You may be surprised how much you need to knead to really make the slime form. If it’s not the desirable consistency keep kneading. If you find it to still be too sticky, add a little bit of lotion or baby oil to your hands.

Watch our Unicorn Slime tutorial video here before you get started!

You can print the full recipe off here:

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5 from 7 votes

How to Make Slime With Contact Solution

Ingredients

1Bottle of Elmer's Glue

1/2teaspoonBaking Soda

1½TBSPof Contact Lens Solution

1TBSPOptional - Add 2 TBSP to up to 1/2 CUP of water if you'd like a stretchier slime.

Optional - Add in extra glitter if desired

Instructions

Get a bowl to mix your slime ingredients in.

Pour your entire 6 oz Elmer’s Glitter glue into the bowl.

Add your baking soda and mix in thoroughly. Also add 1 TBSP or more (up to 1/2 cup) of water here if you want a stretchier slime.

Slowly add in your contact lens solution (reminder: your contact lens solution should contain boric acid or your slime will not form). Add it in slowly and mix if possible so that you can adjust and ensure you do not add too much. You may not need the full amount so take this step slowly.

Now mix until your slime forms and begins to harden. Take it out and knead, knead, knead. You may be surprised how much you need to knead to really make the slime form. If it’s not the desirable consistency keep kneading. If you find it to still be too sticky, add a little bit of lotion or baby oil to your hands.

Nutrition Information

Slime Safety & Precautions

Note: Making slime is a science experiment and safety precautions should still be made when creating slime. By making this slime, you agree to our site terms which you can read here.

Make sure that version of Equate has sodium borate and boric acid on the label. We typically use Renu Fresh but have many followers that use Equate. Also make sure you’re using regular Elmer’s white school glue, not Glue-All or their natural brand. And finally check your baking soda isn’t expired. It is one of the ingredients that is the problem so hopefully that helps!

Hi Erika – we buy a lot of our glitter from Michaels and this one actually came from there. They have two sections of where they sell glitter in the craft section and in the kids craft section. Check both areas and you should find something similar. Thanks!

So… my daughter had slime that she received at a Birthday party a while ago. Well… today she really wanted to play with the slime and had a melt down when she searched high and low and couldnt find it anywhere. To be honest… I think I threw it out when it got really dirty. THANK GOODNESS for your recipe! You are a lifesaver! We had all the ingredients already at home and we were able to whip up new slime in no time. Bonus: It was a great activity that we did together. She was soooo happy! THANK YOU!

Excellent recipe and very easy to make! My 8yo daughter is going to use this simple recipe at school for Teach the Teacher Day. She’s super stoked!!! I used Up and Up sensitive saline solution from Target, only needed about 1 tablespoon and used about 1/4 cup of water because the Kid loves stretchy slime! Works perfectly, thanks so much for sharing!!!

Thankful i came across ur post. I bought the elmers galaxy slime starter pack. I thought it was a complete slime kit.. but we had to purchase separately baking soda and contact solution. Kids was stoked to make slime.. but all 3 glue bottles (soo expensive in my country) went to waste as it was too watery and sticky. I tried n tried. Didnt happen. Then i read you said the contact solution has to contain boric acid. Bingo. The one we used didnt contain that. But we didnt know! Honestly felt so cheated cos elmers didnt specify this in their instruction/ingredients.. wish i came across ur post sooner.

Made fantastic slime using this recipe, the texture is perfect, not to sticky so isn’t sticking to clothes, etc. really stretchy so the kids are loving it. The only problem i’m having is that the slime is leaving a greasy residue on hands, even though I don’t mind this, I know my niece’s mother isn’t going to be happy. Is there any way of making it less greasy? Have I gone wrong somewhere along the way causing the slime to be greasy? Is this just the way it is? Any help will be greatly appreciated 🙂

Rachael we haven’t experienced a greasy residue but perhaps if you use a little baby oil or lotion on the hands when playing with it that may help prevent any of the slime coming off? Of course we always recommend washing hands right after use too. Glad you are happy with the recipe, thanks for commenting!

Super excited to try this recipe. Thank you for such great detailed recipies and tips. Making a special ‘All About Slime’ Easter basket for my 8 yr old with everything under the sun to make, play and experiment for hours. 🙂

It’s going to be sticky when you’re initially kneading it. Keep working it for awhile and if you still find it sticky, add a little bit more contact lens solution (one teaspoon at a time) until you like the consistency. You can also put some baby oil or lotion on your hands instead which helps it to not stick as much. If you add too much contact solution it may become not as stretchy.